DocumentCode
3403080
Title
Research of the reason to increase stray conductance and tgδ of impregnant of capacitor voltage transformer
Author
Yu, Zan Qi
Author_Institution
Xi´´an Power Capicitor Res. Lab., China
fYear
1996
fDate
15-19 Jul 1996
Firstpage
480
Lastpage
483
Abstract
Mineral oil was used as the liquid dielectric in electromagnetic device of capacitor voltage transformer (CVT) previously. At present the Alkyl Benzene oil (AB oil) is applied. However, the stray conductance and tgδ of AB oil were once been larger. This paper studies the practicability of the AB oil as impregnant in the electromagnetic device, and simulated electromagnetic device has been placed in the AB oil and mineral oil separately. Then, specimens were aged for 1440 h. The stray conductance and capacitance for two kinds of specimens (oil) are tested so that the reason of increasing the stray conductance and tgδ of impregnant can be found
Keywords
composite insulating materials; insulation testing; potential transformers; power transformer insulation; power transformer testing; transformer oil; 1440 h; ageing; alkyl benzenes oil; capacitor voltage transformer; electromagnetic device; impregnant; liquid dielectric; mineral oil; stray conductance; Aging; Capacitance; Capacitors; Dielectric devices; Dielectric liquids; Electromagnetic devices; Minerals; Petroleum; Testing; Voltage transformers;
fLanguage
English
Publisher
ieee
Conference_Titel
Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on
Conference_Location
Roma
Print_ISBN
0-7803-3560-0
Type
conf
DOI
10.1109/ICDL.1996.565576
Filename
565576
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